Defensive publication

ABSTRACT

FIBER SHEDDING OF A NAPPED POLYESTER BLANKET IS PREVENTED BY TREATING THE NAPPED FABRIC WITH AN AQUEOUS DISPERSION OR EMULSION OF A RESINOUS COMPOSITION CONTAINING A PLURALITY OF SELF CROSS-LINKING ACRYLIC POLYMERS SUCH AS METHYLACRYLATE AND ETHYLACRYLATE. UPON EVAPORATION OF THE AQUEOUS MEDIUM AND CURING BY APPLICATION OF HEAT MINUTE AMOUNTS OF RESINOUS COPOLYMER FORMED IN THE CURING STAGE FIND THEIR WAY BETWEEN THE POLYESTER FIBERS AT POINTS OF CONTACT AND SERVE TO SPOT WELD THESE FIBERS AT THE CONTACT POINTS. THE RESULTING NAPPED BLANKET PRODUCT IS IMMUNE OR HIGHLY RESISTANT TO FIBER SHEDDING IN NORMAL USE OR LAUNDERING AND CAPABLE OF RETAINING ITS ORIGINAL INHERENT LOFT, FLUFFINESS AND RESILIENCY UNDER SUCH CONDITIONS.

DEFENSIVE PUBHGATION UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice of Dec.16, 1969, 869 0G. 687. The abstracts of Defensive Publicationapplications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates thenumber of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent Oflice makes no assertion as tothe novelty of the disclosed subject matter.

PUBLISHED MARCH 7, 1972 T896 015 PREVENTION OF FIBER SHEDDllNG FROMNAPPED POLYESTER BLANKETS Howard M. Lewis, 14525 S. Pines Cove, Dallas,Tex. 75234 Filed Jan. 11, 1971, Ser. No. 105,633 Int. Cl. B321 27/08,27/36 US. Cl. 117-138.8 F No Drawing. 10 Pages Specification Fibershedding of a napped polyester blanket is prevented by treating thenapped fabric with an aqueous dispersion or emulsion of a resinouscomposition containing a plurality of self cross-linking acrylicpolymers such as methylacrylate and ethylacrylate. Upon evaporation ofthe aqueous medium and curing by application of heat minute amounts ofresinous copolymer formed in the curing stage find their way between thepolyester fibers at points of contact and serve to spot weld thesefibers at the Contact points. The resulting napped blanket prodnot isimmune or highly resistant to fiber shedding in normal use or launderingand capable of retaining its original inherent loft, flutliness andresiliency under such conditions.

